Facebook may be at their best, but I can still imagine the possibility of a better social networking experience. At the very least, a for-pay service where user

Facebook may be at their best, but I can still imagine the possibility of a better social networking experience. At the very least, a for-pay service where users (rather than advertisers) are the customers could result in a better product. But we'll never know, since nobody else can reasonably enter the market.